CN114695492B - Display panel and mobile terminal - Google Patents
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- CN114695492B CN114695492B CN202210202567.1A CN202210202567A CN114695492B CN 114695492 B CN114695492 B CN 114695492B CN 202210202567 A CN202210202567 A CN 202210202567A CN 114695492 B CN114695492 B CN 114695492B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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Abstract
本申请公开了一种显示面板及移动终端，该显示面板包括阵列基板和有发光功能层，阵列基板包括阵列层和设置于阵列层上的至少一无机绝缘层，发光功能层包括阳极层和设置于阳极层上的发光层，阳极层和无机绝缘层接触，以及阳极层在无机绝缘层上的正投影位于无机绝缘层内；本申请通过在发光功能层和阵列层之间设置至少一无机绝缘层，以及使发光功能层中的有机发光材料与阵列基板中的有机平坦层隔离，避免有机平坦层中的水汽在高温或光照条件下向有机发光材料扩散，消除了有机发光材料因水汽而失效的技术问题，提高了产品的显示效果。
The present application discloses a display panel and a mobile terminal, wherein the display panel comprises an array substrate and a light-emitting functional layer, wherein the array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer, wherein the light-emitting functional layer comprises an anode layer and a light-emitting layer arranged on the anode layer, wherein the anode layer is in contact with the inorganic insulating layer, and an orthographic projection of the anode layer on the inorganic insulating layer is located within the inorganic insulating layer; the present application arranges at least one inorganic insulating layer between the light-emitting functional layer and the array layer, and isolates the organic light-emitting material in the light-emitting functional layer from the organic flat layer in the array substrate, thereby preventing water vapor in the organic flat layer from diffusing to the organic light-emitting material under high temperature or light conditions, thereby eliminating the technical problem of failure of the organic light-emitting material due to water vapor and improving the display effect of the product.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a mobile terminal.
Background
With the development of technology and the improvement of product requirements of people, a comprehensive screen product with a high screen ratio becomes a promising development trend of smart phones, so that the technology of under-screen shooting is particularly important.
In the existing OLED display panel, as for the under-screen camera shooting display technology, a plurality of layers of organic flat layers are required to be arranged for metal wire arrangement because metal materials in a light transmission area are required to be transferred to the periphery of the light transmission area, and the organic flat layers are easy to absorb water, and absorbed water vapor can diffuse to an organic luminescent material under the conditions of high temperature or a photomask, so that the organic luminescent material is invalid, and the abnormal display of a product is caused.
Disclosure of Invention
The application provides a display panel and a mobile terminal, which aim to solve the technical problem that the display of the conventional OLED display panel is abnormal.
In order to solve the above problems, the technical scheme provided by the application is as follows:
the present application provides a display panel, which includes:
the array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer;
The light-emitting functional layer is arranged on the array layer and comprises an anode layer and a light-emitting layer arranged on the anode layer;
Wherein the anode layer is in contact with the inorganic insulating layer, and an orthographic projection of the anode layer on the inorganic insulating layer is positioned in the inorganic insulating layer.
In the display panel of the present application, the light emitting functional layer further includes:
The pixel definition layer is arranged on the inorganic insulating layer, the pixel definition layer is in contact with the inorganic insulating layer, and orthographic projection of the pixel definition layer on the inorganic insulating layer is positioned in the inorganic insulating layer.
In the display panel of the present application, the array substrate further includes:
At least one organic planarization layer disposed between the non-insulating inorganic layer and the array layer;
wherein the thickness ratio of the organic planarization layer and the inorganic insulation layer ranges from 4 to 5.
In the display panel of the present application, the array substrate includes:
a first organic planarization layer disposed on the array layer;
a second organic planarization layer disposed on the first organic planarization layer;
A first inorganic insulating layer disposed on the second organic planarization layer;
A second inorganic insulating layer disposed on the first inorganic insulating layer, the second inorganic insulating layer being in contact with the anode layer, and
The electric connection member is arranged between the array layer and the anode layer, penetrates through the second inorganic insulating layer, the first inorganic insulating layer, the second organic flat layer and the first organic flat layer, and is electrically connected with the source electrode and the drain electrode in the array layer through the electric connection member.
The display panel comprises an under-screen display area and a main display area positioned at the periphery of the under-screen display area, wherein a plurality of stress release holes and a plurality of first contact holes are formed in the inorganic insulating layer in the under-screen display area, and the anode layer in the under-screen display area is electrically connected with a source electrode and a drain electrode in the array layer through conductive materials in the plurality of first contact holes;
The aperture of the first contact hole is smaller than that of the stress release hole.
In the display panel of the present application, the aperture of the stress relief hole in the inorganic insulating layer is smaller than the aperture of the stress relief hole in the organic flat layer.
In the display panel of the present application, a plurality of second contact holes are provided on the inorganic insulating layer in the main display region, and the anode layer in the main display region is electrically connected to the source and drain electrodes in the array layer through conductive materials in the plurality of second contact holes;
wherein the distribution density of the stress release holes is smaller than the distribution density of the second contact holes.
In the display panel, the display area under the screen comprises a light transmission area and a non-light transmission area positioned at the periphery of the light transmission area, wherein a film material in the light transmission area is made of a transparent material, and a shading metal material is arranged in the non-light transmission area;
The inorganic insulating layer in the light-transmitting area is provided with a plurality of first release holes, the inorganic insulating layer in the non-light-transmitting area is provided with a plurality of second release holes, and the aperture of the second release holes is smaller than that of the first release holes.
In the display panel of the present application, the distribution density of the second release holes is smaller than the distribution density of the first release holes.
The application also provides a mobile terminal, which comprises a terminal main body and the display panel, wherein the terminal main body and the display panel are combined into a whole.
The application discloses a display panel and a mobile terminal, wherein the display panel comprises an array substrate and a luminous functional layer, the array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer, the luminous functional layer comprises an anode layer and a luminous layer arranged on the anode layer, the anode layer is in contact with the inorganic insulating layer, and orthographic projection of the anode layer on the inorganic insulating layer is positioned in the inorganic insulating layer.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is an enlarged view of a subpixel in a normal display panel;
FIG. 2 is an enlarged view of subpixels in an abnormal display panel;
FIG. 3 is a cross-sectional view of a display panel according to the present application;
FIG. 4 is a schematic top view of a display panel of the present application;
FIG. 5 is a cross-sectional DD according to the prior art in FIG. 4;
fig. 6 is a cross-sectional view DD in fig. 4 according to the application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
For the under-screen image pick-up display technology, as the metal material of the light transmission area in the display panel needs to be transferred to the periphery of the light transmission area, a plurality of organic flat layers need to be arranged for arranging metal wires, referring to fig. 1 and 2, fig. 1 is an enlarged view of the sub-pixels in the normal display panel, fig. 2 is an enlarged view of the sub-pixels in the abnormal display panel, and the water vapor absorbed by the organic flat layers can diffuse to the organic luminescent material, so that the organic luminescent material is invalid, and the organic luminescent material in fig. 2 contracts inwards, so that abnormal problems such as powder screen occur. The present application provides a display panel to solve the above technical problems.
Referring to fig. 3 to 6, the present application further provides a display panel 100, which includes:
an array substrate 200 comprising an array layer 10 and at least one inorganic insulating layer 210 disposed on the array layer 10;
a light emitting functional layer 300 disposed on the array layer 10, the light emitting functional layer 300 including an anode layer 301 and a light emitting layer 302 disposed on the anode layer 301;
Wherein the anode layer 301 is in contact with the inorganic insulating layer 210, and an orthographic projection of the anode layer 301 on the inorganic insulating layer 210 is located within the inorganic insulating layer 210.
In this embodiment, at least one inorganic insulating layer 210 is disposed between the light emitting functional layer 300 and the array layer 10, and the organic light emitting material in the light emitting functional layer 300 is isolated from the organic flat layer 310 in the array substrate 200, so that the water vapor in the organic flat layer 310 is prevented from diffusing to the organic light emitting material under the high temperature or illumination condition, the technical problem that the organic light emitting material fails due to the water vapor is eliminated, and the display effect of the product is improved.
The technical scheme of the present application will now be described with reference to specific embodiments.
Referring to fig. 3, the array substrate 200 may include a substrate 111 and an array layer 10 disposed on the substrate 111, the array layer 10 may include a plurality of thin film transistors 110, and the thin film transistors 110 may be of an etching-stop type, a back channel etching type, or a structure divided into a bottom gate thin film transistor, a top gate thin film transistor, or the like according to the positions of the gate electrode and the active layer 112, which is not particularly limited.
In this embodiment, the material of the substrate 111 may be glass, quartz, polyimide, or the like. The substrate 111 of the present application is illustrated as a flexible base, and the substrate 111 may include a bilayer polyimide and a buffer layer disposed between the bilayer polyimide, and the buffer layer 118 is generally disposed on the upper layer of the substrate 111.
In this embodiment, as shown in fig. 3, taking a top gate thin film transistor as an example, the thin film transistor 110 may include an active layer 112 disposed on the substrate 111, a gate insulating layer 113 disposed on the active layer 112, a gate layer 117 disposed on the gate insulating layer 113, an inter-insulating layer 114 disposed on the gate layer 117, a source/drain layer 115 disposed on the inter-insulating layer 114, at least one organic planarization layer 310 disposed on the source/drain layer 115, and at least one inorganic insulating layer 210 disposed on the organic planarization layer 310.
In this embodiment, the array substrate 200 further includes a plurality of contact holes disposed between the light emitting functional layer 300 and the array layer 10, wherein the plurality of contact holes are provided with electrical connection members 120, and the anode layer 301 is electrically connected to the source and drain electrodes in the array layer 10 through the electrical connection members 120.
In this embodiment, the material of the inorganic insulating layer 210 may include a compound of a combination of silicon oxynitride and silicon nitride.
In this embodiment, the organic planarization layer 310 may include an organic material such as an organic resin.
Referring to fig. 3, the display panel 100 further includes a light emitting functional layer 300 disposed on the array substrate 200, and the light emitting functional layer 300 may include an anode layer 301 disposed on the inorganic insulating layer 210, a light emitting layer 302 disposed on the anode layer 301, and a cathode layer 303 disposed on the light emitting layer 302. The light emitting functional layer 300 may further include a pixel defining layer 304, where the pixel defining layer 304 includes a plurality of pixel openings, one of the pixel openings corresponds to one anode in the anode layer 301, and the light emitting layer 302 may include a plurality of light emitting pixels corresponding to a plurality of anodes one by one.
In this embodiment, the display panel 100 may further include a support pillar disposed on the pixel defining layer 304 and a cover plate layer 500 disposed on the support pillar, where the support pillar may be formed in the same process as the pixel defining layer 304 or in a different process.
In this embodiment, when the display panel 100 is not provided with the support columns, referring to fig. 3, the display panel 100 further includes an encapsulation layer 400 disposed on the light emitting function layer 300 and a cover layer 500 disposed on the encapsulation layer 400, and the encapsulation layer 400 may include at least a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer stacked on the pixel defining layer 304.
In the above embodiment, the inorganic insulating layer 210 is disposed between the light emitting functional layer 300 and the array layer 10, so that the diffusion of the moisture in the organic material into the organic material in the light emitting functional layer 300 can be isolated, but since the organic planarization layer 310 and the pixel defining layer 304 are laid entirely and both the organic planarization layer 310 and the pixel defining layer 304 are made of the organic material, if the area of the inorganic insulating layer 210 is small, that is, the organic planarization layer 310 and the pixel defining layer 304 cannot be completely isolated, the moisture in the organic planarization layer 310 can be transferred into the light emitting material of the light emitting function through the pixel defining layer 304.
In the display panel 100 of the present application, referring to fig. 3, the pixel defining layer 304 in the light emitting functional layer 300 may be disposed on the inorganic insulating layer 210, that is, the pixel defining layer 304 contacts the inorganic insulating layer 210, and the orthographic projection of the pixel defining layer 304 on the inorganic insulating layer 210 is located in the inorganic insulating layer 210.
In this embodiment, the inorganic insulating layer 210 may be laid over the entire surface of the display panel 100 to isolate the pixel defining layer 304 from the organic planarization layer 310, so that moisture in the organic planarization layer 310 is prevented from being transferred to the organic luminescent material through the pixel defining layer 304, and further protection of the organic luminescent material is achieved.
In the display panel 100 of the present application, the array substrate 200 further includes at least one organic planarization layer 310 disposed between the inorganic insulating layer 210 and the array layer 10, wherein a thickness ratio of the organic planarization layer 310 to the inorganic insulating layer 210 ranges from 4 to 5.
In this embodiment, the organic planarization layer 310 is mainly configured to ensure the flatness of the film layer in the array layer 10, so that the subsequent process can be performed on the flat film layer surface, thereby improving the stability of the structure.
In the present embodiment, since the leveling property of the inorganic insulating layer 210 is weak, the deposition thickness of the inorganic insulating layer 210 cannot be excessively large, and the thickness ratio of the organic planarization layer 310 to the inorganic insulating layer 210 may range from 4 to 5.
In this embodiment, the thickness of the organic planarization layer 310 may be 1000nm.
In this embodiment, the thickness of the inorganic insulating layer 210 may be 200nm to 250nm.
Referring to fig. 4, the display panel 100 may include an under-screen display area BB and a main display area AA located at the periphery of the under-screen display area BB, that is, for a panel capable of displaying under-screen display, the film layer in the under-screen display area BB needs to be made of transparent materials, so that the metal lines for transmitting data signals and scanning signals, and the driving islands such as the pixel circuits need to be disposed at the periphery of the under-screen display area BB, and the limitation of space is that multiple layers of organic flat layers 310 need to be disposed to layer the multiple driving islands, so as to avoid interference of different driving islands.
In the display panel 100 of the present application, referring to fig. 3, the array substrate 200 may include:
a first organic planarization layer 311 disposed on the array layer 10;
a second organic planarization layer 312 disposed on the first organic planarization layer 311;
A first inorganic insulating layer 211 disposed on the second organic planarization layer 312;
A second inorganic insulating layer 212 provided on the first inorganic insulating layer 211, the second inorganic insulating layer 212 being in contact with the anode layer 301, and
And an electrical connection member 120 disposed between the array layer 10 and the anode layer 301, wherein the electrical connection member 120 penetrates the second inorganic insulating layer 212, the first inorganic insulating layer 211, the second organic flat layer 312, and the first organic flat layer 311, and the anode layer 301 is electrically connected to the source/drain electrode in the array layer 10 through the electrical connection member 120.
In the present embodiment, the number of the organic planarization layer 310 and the inorganic insulation layer 210 is not particularly limited, and the technical scheme of the present application will be described only by taking two organic planarization layers 310 and two inorganic insulation layers 210 as examples.
Referring to fig. 3, the source-drain layer 115 may include a first source-drain electrode 115a and a second source-drain electrode 115b, where the first source-drain electrode 115a is disposed on the inter-insulating layer 114, the second source-drain electrode 115b is disposed on the first organic planarization layer 311, and the second source-drain electrode 115b is electrically connected to the first source-drain electrode 115a through a source-drain via.
Referring to fig. 3, the electrical connection member 120 may include a first connection section 121, a second connection section 122 and a third connection section 123, wherein the first connection section 121 is located on the second organic flat layer 312, the second connection section 122 is located on the first inorganic insulating layer 211, the third connection section 123 is located on the second inorganic insulating layer 212, and the first connection section 121, the second connection section 122 and the third connection section 123 are electrically connected, and the pixel driving islands in the under-screen display area BB are arranged by the metal arranged in the same layer as the first connection section 121, the second connection section 122 and the third connection section 123, and are electrically connected with the sub-pixels in the under-screen display area BB.
In this embodiment, the first inorganic insulating layer 211 and the second inorganic insulating layer 212 isolate the organic light emitting material from the organic planarization layer 310 in the array substrate 200, so that moisture in the organic planarization layer 310 is prevented from being transferred to the organic light emitting material through the pixel defining layer 304, and further protection of the organic light emitting material is achieved.
In this embodiment, for the flexible panel, the display panel 100 may further include a bending region CC, in which the flexible opening 116 is disposed, and the first organic flat layer 311 fills the flexible opening 116, thereby increasing the flexibility of the bending region CC.
On the basis of the above embodiment, when the inorganic insulating layer 210 is entirely laid, the light-transmitting region DB of the under-screen display panel 100 is not provided with the corresponding metal material, and thus the region is susceptible to a technical problem of stress concentration, thereby causing the inorganic insulating layer 210 and the organic planarization layer 310 of the region to be peeled off.
Referring to fig. 5, the sub-pixels in the display area BB of the current display panel 100 are connected to the corresponding pixel driving islands through transparent conductive materials, and the first contact holes 141 connected to the sub-pixels in the display area BB are smaller than the contacts Kong Jiao in the display area AA because the size of the sub-pixels in the display area BB is smaller than the size of the sub-pixels in the main display area AA, so that the stress on the inorganic insulating layer 210 in the display area BB cannot be released, and the inorganic insulating layer 210 in the area is peeled off.
In the display panel 100 of the present application, referring to fig. 6, the inorganic insulating layer 210 in the under-screen display area BB is provided with a plurality of stress relief holes 130 and a plurality of first contact holes 141, and the anode layer 301 in the under-screen display area BB is electrically connected to the source and drain electrodes in the array layer 10 through the conductive material in the plurality of first contact holes 141.
In this embodiment, the aperture of the first contact hole 141 may be smaller than the aperture of the stress release hole 130.
In this embodiment, a plurality of stress release holes 130 are added to the inorganic insulating layer 210 in the main display area AA, and the stress release holes 130 and the first contact holes 141 act together to release the stress on the inorganic insulating layer 210, thereby alleviating the technical problem of stress concentration on the inorganic insulating layer 210.
In this embodiment, since the adhesion between the film layers with different properties is smaller than that between the film layers with the same properties, for example, the adhesion between the inorganic layer and the organic layer is smaller than that between the organic layer and the organic layer, and the adhesion between the inorganic layer and the organic layer is smaller than that between the inorganic layer and the inorganic layer, the inorganic layer and the organic layer of the present application are more easily peeled off compared to the inorganic layer due to the problem of weaker adhesion.
In the display panel 100 of the present application, the aperture of the stress relief holes 130 in the inorganic insulating layer 210 is smaller than the aperture of the stress relief holes 130 in the organic planarization layer 310.
In this embodiment, since the inorganic insulating layer 210 is easily peeled off from the organic planarization layer 310, the stress release holes 130 with large hole diameters are provided on the organic planarization layer 310, so that the contact surface between the inorganic insulating layer 210 and the organic planarization layer 310 can be increased while releasing the stress, and the peeling technical problem of the inorganic insulating layer 210 is further improved.
In the display panel 100 of the present application, referring to fig. 6, a plurality of second contact holes 142 are disposed on the inorganic insulating layer 210 in the main display area AA, and the anode layer 301 in the main display area AA is electrically connected to the source/drain electrodes in the array layer 10 through the conductive material in the plurality of second contact holes 142.
In this embodiment, the distribution density of the stress release holes 130 may be smaller than the distribution density of the second contact holes 142. Since the stress in the under-screen display area BB is commonly released by the stress release holes 130 and the first contact holes 141, if the distribution density of the stress release holes 130 is greater than that of the second contact holes 142, the total number of holes in the under-screen display area BB is greater than that of the second contact holes 142, which results in unequal stresses in the main display area AA and the under-screen display area BB, so that a problem of stress concentration in the film layer in the main display area AA occurs.
In this embodiment, the aperture of the stress relief hole 130 and the aperture of the contact hole in the main display area AA may be equal.
In the display panel 100 of the present application, referring to fig. 6, the under-screen display area BB includes a light-transmitting area DB and a non-light-transmitting area DA located at the periphery of the light-transmitting area DB, wherein a film material in the light-transmitting area DB is made of a transparent material, and a light-shielding metal material is disposed in the non-light-transmitting area DA.
In this embodiment, a plurality of first release holes 131 are disposed on the inorganic insulating layer 210 in the light-transmitting region DB, and a plurality of second release holes 132 are disposed on the inorganic insulating layer 210 in the light-non-transmitting region DA, wherein the aperture of the second release holes 132 is smaller than that of the first release holes 131.
In this embodiment, the light-transmitting area DB in the under-screen display area BB is used for transmitting external light and entering the internal camera, and the non-light-transmitting area DA is used for arranging the pixel driving islands required by the sub-pixels in the light-transmitting area DB, so that the stress concentration intensity in the inorganic insulating layer 210 in the non-light-transmitting area DA is weaker than the stress concentration intensity in the inorganic insulating layer 210 in the light-transmitting area DB, i.e. the aperture of the second release hole 132 is smaller than the aperture of the first release hole 131, so that the stress release intensity in the light-transmitting area DB is stronger than the stress release intensity in the non-light-transmitting area DA, and the stress of the inorganic insulating layer 210 in different areas in the light-transmitting area DB and the non-light-transmitting area DA is uniform, thereby avoiding the problem of stress concentration in the inorganic insulating layer 210 in the under-screen display area BB.
In this embodiment, the distribution density of the second release holes 132 is smaller than that of the first release holes 131. Because the pixel driving islands for driving the sub-pixels to emit light in the non-light-transmitting area DA and the light-transmitting area DB are both in the non-light-transmitting area DA, the metal material in the non-light-transmitting area DA is denser than the metal material in the main display area AA, the stress concentration is weakest, the distribution density of the second release holes 132 is smaller than that of the first release holes 131, the problem of uneven stress in the light-transmitting area DB and the non-light-transmitting area DA is balanced, the stress distribution in the light-transmitting area DB and the non-light-transmitting area DA is uniform, and the problem of film peeling caused by uneven stress distribution is avoided.
In this embodiment, since the metal material in the non-transparent area DA is denser than the main display area AA, the aperture of the second release holes 132 may be smaller than the aperture of the second contact holes 142, or the distribution density of the second release holes 132 may be smaller than the distribution density of the second contact holes 142.
The application also provides a mobile terminal which comprises a terminal main body and the display panel, wherein the terminal main body and the display panel are combined into a whole. The terminal body may be a device such as a circuit board bound to a display panel. The mobile terminal can comprise electronic equipment such as a mobile phone, a television, a notebook computer and the like.
The application discloses a display panel and a mobile terminal, wherein the display panel comprises an array substrate and a luminous functional layer, the array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer, the luminous functional layer comprises an anode layer and a luminous layer arranged on the anode layer, the anode layer is contacted with the inorganic insulating layer, and orthographic projection of the anode layer on the inorganic insulating layer is positioned in the inorganic insulating layer.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The display panel and the mobile terminal provided by the embodiments of the present application are described in detail, and specific examples are used herein to explain the principles and implementation modes of the present application, and the description of the above embodiments is only for helping to understand the technical solutions and core ideas of the present application, and those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A display panel, comprising:
The array substrate comprises an array layer and at least one inorganic insulating layer arranged on the array layer, wherein the inorganic insulating layer comprises a first inorganic insulating layer and a second inorganic insulating layer which are arranged in a laminated manner;
The light-emitting functional layer is arranged on the array layer and comprises an anode layer and a light-emitting layer arranged on the anode layer;
The second inorganic insulating layer is arranged on one side, far away from the array layer, of the first inorganic insulating layer, the second inorganic insulating layer is not in contact with the array layer, the anode layer is in contact with the second inorganic insulating layer, and orthographic projection of the anode layer on the second inorganic insulating layer is positioned in the second inorganic insulating layer.
2. The display panel according to claim 1, wherein the light-emitting functional layer further comprises:
The pixel definition layer is arranged on the inorganic insulating layer, the pixel definition layer is in contact with the inorganic insulating layer, and orthographic projection of the pixel definition layer on the inorganic insulating layer is positioned in the inorganic insulating layer.
3. The display panel of claim 1, wherein the array substrate further comprises:
At least one organic planarization layer disposed between the inorganic insulating layer and the array layer;
wherein the thickness ratio of the organic planarization layer and the inorganic insulation layer ranges from 4 to 5.
4. The display panel of claim 1, wherein the array substrate comprises:
a first organic planarization layer disposed on the array layer;
a second organic planarization layer disposed on the first organic planarization layer;
The first inorganic insulating layer is arranged on the second organic flat layer, the second inorganic insulating layer is arranged on one side of the first inorganic insulating layer far away from the second organic flat layer, and
The electric connection member is arranged between the array layer and the anode layer, penetrates through the second inorganic insulating layer, the first inorganic insulating layer, the second organic flat layer and the first organic flat layer, and is electrically connected with the source electrode and the drain electrode in the array layer through the electric connection member.
5. The display panel according to any one of claims 3 to 4, wherein the display panel comprises an under-screen display region and a main display region located at a periphery of the under-screen display region, wherein a plurality of stress release holes and a plurality of first contact holes are provided on the inorganic insulating layer in the under-screen display region, and the anode layer in the under-screen display region is electrically connected to the source and drain electrodes in the array layer through a conductive material in the plurality of first contact holes;
The aperture of the first contact hole is smaller than that of the stress release hole.
6. The display panel according to claim 5, wherein a pore diameter of the stress release hole in the inorganic insulating layer is smaller than a pore diameter of the stress release hole in the organic flat layer.
7. The display panel according to claim 5, wherein a plurality of second contact holes are provided on the inorganic insulating layer in the main display region, and the anode layer in the main display region is electrically connected to the source and drain electrodes in the array layer through conductive materials in the plurality of second contact holes;
wherein the distribution density of the stress release holes is smaller than the distribution density of the second contact holes.
8. The display panel according to claim 7, wherein the under-screen display area comprises a light-transmitting area and a non-light-transmitting area located at the periphery of the light-transmitting area, the film material in the light-transmitting area is made of a transparent material, and a light-shielding metal material is arranged in the non-light-transmitting area;
The inorganic insulating layer in the light-transmitting area is provided with a plurality of first release holes, the inorganic insulating layer in the non-light-transmitting area is provided with a plurality of second release holes, and the aperture of the second release holes is smaller than that of the first release holes.
9. The display panel of claim 8, wherein a distribution density of the second release holes is less than a distribution density of the first release holes.
10. A mobile terminal comprising a terminal body and the display panel according to any one of claims 1 to 9, the terminal body and the display panel being combined as one body.
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|---|---|---|---|---|
| CN1429055A (en) * | 2001-11-09 | 2003-07-09 | 株式会社半导体能源研究所 | Luminescent equipment and mfg. method thereof |
| CN109671761A (en) * | 2018-12-19 | 2019-04-23 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| CN107302012B (en) * | 2017-07-06 | 2020-03-10 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED array substrate, manufacturing method thereof and OLED display panel |
| CN109411622B (en) * | 2018-09-29 | 2021-04-06 | 广州国显科技有限公司 | Flexible display panel and flexible display device |
| CN110112191B (en) * | 2019-04-29 | 2021-06-01 | 武汉华星光电半导体显示技术有限公司 | Display panel, display device and manufacturing method thereof |
| CN111725271B (en) * | 2020-06-09 | 2022-10-04 | 武汉华星光电半导体显示技术有限公司 | OLED display panel |
| CN112736122A (en) * | 2020-12-30 | 2021-04-30 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429055A (en) * | 2001-11-09 | 2003-07-09 | 株式会社半导体能源研究所 | Luminescent equipment and mfg. method thereof |
| CN109671761A (en) * | 2018-12-19 | 2019-04-23 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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